Refrigeration



F R. ERBACH REFRIGERA'ITON March 24, 1931.

Filed Jan. 22, 1927 2 Sheets-Sheet 1 Pfed erick l2. E'rbach I Inventor Attornegs March 24, 1931.- F. R. ERBACH REFRIGERAT ION Filed Jan. 22, 1927 2 Sheets-Sheet 2 Frederick R. E-rbach Inven to-r Attornegs Patented 24;,

UN l T imam FREDERICK R. BREACH, OF DETRQI'E, lllllClBIIG-AN, AElSIGNQR ND KELWATQR CORPO- RATION, 015 DETROIT, MICHIGAN, A CGR'EGBATIQN GE MIGIEIIGMF- REFRIGERATIQN Application filed January 22, 1927. denial Ito, itlltfiltt.

My invention relates to mechanical refrigeration, and particularly to means for pre-cooling milk prior to its storage in a refrigerator cabinet, and the principal object a of my invention is to provide new and inn proved means of this type. In the drawings accompanying this specification and forming a part of this application I have shown, for

purposes of illustration, one form which my to invention may assume. In these drawings:

Figure 1 is a front elevation of a mechanical refrigerator in which this embodiment of my invention is included. I

Figure 2 is a side elevation of the same.

Figure 3 is a longitudinal vertical section through this embodiment of my invention, while Figure 4 is a transverse vertical section oi the same.

The embodiment of my invention disclosed herein comprises a refrigerator cabinet 11 having a compartment 12 for housing the compressor unit of the system, and a compartment 13 for storage of the articles to he 25 refrigerated, in this instance cans of milk.

Means for pre-cooling the mill: is disposed exteriorly of the refrigerator cabinet 11 and comprises a pair of spaced end plates 14 and 15 supported by the brine pipes 16 and 17 which in turn are su ported by the studs 18 and '19 projecting ruin a wall of the refrigerator. lhe end plates 1% and 15' are provided with a plurality of recesses 20 to accommodate the ends of a plurality of pipes 21 arranged in parallel relation and having their ends so connected that a continuous zigzag passage is formed between the inlet pipe 16 and the outlet pipe 17 through which a refrigerant is circulated b thermosiphonio action, or by a pump, not s own.

This assembly of end plates 14 and 15 pipes 21 is enclosed by an open top casing 22 which contains brine, or like heat conducting fluid, which is cooled by the refrigerant flowing through the pipes 21. The ends of the casing 22 have outwardly extending enlarged portions 23 formin means to guide the flow of milk which is being cooled. lhe casing 22 is detachably held in assembled relation with respect to the pipes 21 by means of rings 24 and 25 carried by the pipes 16 and 1? respecv tively, and enga ing studs 31 and 32 on the I ends of the casing.

A discharge trough 26, having in its bottom a plurality of perforations 27, is supported by the brackets 14 and 15 above the pipes 21 and casing 22, and serves as a receiver tor the milk which is to be cooled, and carries, disposed therebelow, an upwardly curved plate 28 which has the dual function of closing the open end of the casing 22 and of guiding the outflowing milk onto the outer surface serves as a receiver for the cooled milk which passes through the spout 30 into the receiv ing can 35 supported by the shelf 36 spaced a suitable distance below the trough 29.

From the above description it will be obvious to those smiled in the art thatI have provided an improved milk cooler for use in a mechanical refrigerator,

At the same time it will also be obvious to those skilled in the art that the particular em bodiment of my invention herein shown and described may be variously changed and modified without departing from the spirit of my invention or sacrificing the advantages thereof, and it will therefore be understood that the disclosure herein is illustrative only, and that my invention is not limited thereto;

I claim: I

1. in a liquid aerating and cooling apparatus, a structure including end plates having tubular recesses and pipes engaging the recesses to form therewith a continuous assage for the flow of heat absorbing uid therethrough, a housing surrounding said structure, said housing being adapted to contain a heat absorbing fluid, means, for discharging liquid'over the exterior-surfaces of said housing, means for receiving the liquid flowing from. said housing,-and means for detachably associating said housingand said receiving means with said pipes.

2. In a liquid treating apparatus, a struchousing ture including end plates having substantially semi-circular tubular recesses therein and parallel pipes engaging the recesses in said end plates and formingtherewith a continuous passage for the flow of heat absorbing fluid, an open topped housing surrounding said structure ada ted to contain brine, means for discharging liquid to be treated over the exterior surface of said ho sing, means for receiving the liquid flowing from said housing, and means for detachably associating said housing and said receiving means with said structure.

3. In a liquid treating apparatus, a structure including end lates having tubular recesses therein and pipes engaging the recesses to form therewith a sinuous passage for the flow of refrigerant fluid, an open topped housing surrounding said structure,.said housing havingoutwardlyextendingends to directliquid to be treated againstthe exterior surface, means for discharging liquid over the top of said housing, means for receiving the liquid flowing by gravity from the bottom or" said and means for detachably connecting said housing and said receiving means to structure.

4. In a liquid treating apparatus, a structure including end plates provided with recesses thereinand pipes engaging the 'recesses forming therewith a sinuous passage for fluids, an open topped housing surrounding said structure, said housing being adapted to, contain a heat absorbing fluid and having corrugated walls to increase the heat transfer area thereof, a cover plate for the top of said housing, a trough for discharging liquid to be treated upon said cover plate, means for receiving the liquid flowing from said housing, and means for detachably connecting said housing and said receiving means to said structure.

5. Inia liquid treating apparatus, a structure including end plates provided with recesses and parallel pipes cooperating with I the recesses to form a passagefor the flow of heat absorbing fluid therethrough, a housing surrounding said structure, said housing being adapted to contain a heat absorbing fluid and having corrugated walls to increase the heat transfer area thereof, a curved cover plate for the top of said housing adapted to direct liquid to be treated against the upper exterior corrugated walls, means for discharging liquid to be treated on said cover plate, means for receiving the liquid flowing from said housing, lugs secured to the-upper and lower end portions of said housing, means for connecting said receiving means to said lower lugs, and means for connecting said upper lugs to said structure.

6. In a liquid treating apparatus, a structure including end plates provided with recesses therein and pipes associated with the recesses to form. a sinuous passage for the flow of heat absorbing fluid, a housing surrounding said structure, a trough for discharging liquid to be treated over the top of said housing, a top cover plate for said hous ing adapted to direct the liquid against the exterior walls of said housing, a trough for receiving said liquid draining from said housing, and means for connecting said housing and said receiving trough to. said struc-v ture.

7 In a liquid treating apparatus, a structure comprising end plates provided'with re-' cesses, inflow and outflow pipes connecting recesses therein, pipes cooperating with the recesses to form a passage for the flow of heat absorbing fluid therethrough; a brine containing housing surrounding said pipes; a cover plate for the top of said housmg; a trough placed over said cover plate, said trough having-apertures in the bottom wall thereof for discharging liquid to be treated on said cover plate; a trough disposed below said housing for receiving the liquid flowing over said housing; and means for detachably connecting said housing and said receiving trough to said structure.

9. In a liquid treating apparatus, a structure comprising end plates provided with recesses, an inflow pipe engaging an aperture in one of said end plates, an outflow pipe engaging an aperture in the other of said end plates, and pipes connecting the recesses in said end pistes; a housing surrounding said structure; means for disc arging a liquid to be treated over said housing; means for receiving the liquid discharged over said housing; lu s secured adjacent the upper and lower edges of the housing; and means for detachably connecting said housing to said inflow and outflow pipes; and means for conmeeting said receiving means to said housing.

10. In a liquid treating apparatus a structure comprising end plates provided with recesses and an aperture, an inflow pipe engaging the aperture in one of said end plates, an outflow pipe engaging the aperture in the other of said end plates, and pipes cooperating with the recesses in said end plates to form a sinuous passage for the flow of refriger'ant therethrough; a housing thermallyassociated with and surrounding said structure; a cover plate for the top of said hous ing; a, trough for discharging liquid to too treated on said cover late; a trough for receiving the liquid disc urged from said housing; lugs secured to the ends of said housing; 5 rings for detachably connecting said lugs to said inflow and said outflow pipes and means for connecting said receiving trough to said housing. I

In testimony whereof I hereunto nfix my to signature.

FREDEREIQK R. ERBACH. 

